CN1780514A - Method and process for adjusting headlamp power by resistor control - Google Patents

Abstract

Along with mass application of high strength gas discharge lamp, the energy loss is also greatly increased. The invention connects in series a linear reactor into circuit of lamp to make impedance of circuit variable, and accordingly the power of lamp is varied along with. The variable sequence can be set in term of luminous environment, and two stops can be used in setting, namely the full power and the reduced power. Shifting between stops can be completed through using electronic component and electronic circuit. The steps to make the linear reactor are as following: determines the cross section of iron core; determines the geometry size of iron core; and calculates the self-energy loss of ballast.

Description

A kind of method and manufacture craft thereof of utilizing reactor control illuminating lamp Power Conversion

Technical field

The present invention relates to the illuminating lamp energy saver, be specifically related to a kind of method and manufacture craft thereof of utilizing reactor control illuminating lamp Power Conversion.

Technical background

In recent decades, in order to improve quality of illumination, also promptly improve fail safe, reduce rate of failure, the designer carries brightness of illumination more and more highlyer when carrying out illumination Design.High-intensity gas discharge lamp is used in a large number widely, follows and what arrive is that energy consumption increases substantially.Particularly in recent years, energy prices promote significantly, and electric power is expended becomes burden.Therefore, be necessary to strengthen technological improvement, in the hope of slowing down the trend that energy consumption rises.Though energy-saving lighting utensil development at present is very fast, but still be difficult to the effect that obtains to cut down the consumption of energy significantly.

Summary of the invention

The object of the invention is to design a kind of reactor control change lamp power, optimize the structure of ballast itself, under the prerequisite that does not reduce fail safe, according to wagon flow and stream of people's statistical conditions, or automatic or manual carries out Power Conversion, (promptly in busy, thereby lamp operates in high-power state to the operational mode of improvement light source; When the few people of car was rare, conversion automatically can move lamp at 60% rated power place), reach purpose of energy saving thus.

The present invention is achieved in that and utilizes linear reactor, inserts in the circuit for lamp, makes the total impedance of circuit can carry out conversion, thereby the power of lamp is changed thereupon; If changing order is to set according to the needs of lighting environment, under normal circumstances promptly, lamp moves under rated power by designing requirement; In some (late into the night of road lighting for example in particular cases; When the railway station does not have train and passes through; During non-major holiday of lighting engineering or the like), lamp can not extinguish, but needn't illumination very big, and takes into account uniformity again, at this moment can make the lamp downrating; Concrete grammar is that series connection inserts reactor, increases circuit impedance lamp power is descended.

Utilize reactor to realize the illuminating lamp Power Conversion, can be made as two retainings, promptly full power with power falls, gear shift realizes by electromechanical device or electronic circuit.

The manufacture method of reactor is: if the gross power of the lamp during full power is P _{Lamp 1}, the gross power when falling power is P _{Lamp 2}, the making of reactor can be divided into four steps: 1, determine cross section unshakable in one's determination; 2, determine physical dimension; 3, the calculating of ballast self energy consumption; 4, determine cross section unshakable in one's determination.

Concrete steps are as follows:

1, determine cross section unshakable in one's determination:

The gross power of A, the lamp when asking full power is P _{Lamp 1}Gross power when falling power is P _{Lamp 2}Poor: P=P _{Lamp 1}-P _{Lamp 2}

B, selection core section:

$S=K_S\sqrt{P}\left({\mathrm{cm}}^2\right)$

In the formula: S is core section (cm ²);

P is poor (W) of power of lamp tube;

K _SBetween core section coefficient optional 0.5～0.7.Coefficient is obtained greatly, iron

The core temperature rise is lower, but volume is big, material takes.

C, calculating coil turn: according to the quality of silicon steel sheet quality, select the size of magnetic induction density B, black sheet is got 6000G _S, generally get 11000～13000G _S, the desirable 15000～17000G of cold-reduced silicon sheet _S

$N=45\×{10}^4\frac{V}{B_m\×S},$

In the formula: N is coil turn (circle);

B _mBe silicon steel sheet maximum magnetic induction (G _S);

S is the long-pending (cm of core section ²);

V is reactor voltage effective value (V).

D, the required diameter of wire of calculating are:

$D=1.13\sqrt{\frac{I}{{\mathrm{<figure-callout\; id="1"\; label="J"\; filenames="A200410052280.700111.png,A200410052280.700131.png"\; state="\{\{state\}\}">J</figure-callout>}}_1}},$

In the formula: D is diameter of wire (mm)

I is the operating current (A) of fluorescent tube when falling power;

J is the current density (A/mm of lead when falling power ²)

Current density, J is generally got 2.5A/mm ², radiating condition well can be got 3～4A/mm ², the radiating condition difference can get 3～4A/mm ²

2, physical dimension determines

A, calculating coil thickness: selection wire ring framework height H, coil thickness C ' is:

$C^{\&prime;}=\frac{2N{(D+0.03)}^2}{H}$

Window size unshakable in one's determination:

Window width unshakable in one's determination is:

C＝C′+1(mm)

Window height unshakable in one's determination is

$h=\frac{1}{2}H+0.5\left(\mathrm{mm}\right)$

Iron core is repeatedly thick:

$b=\frac{1.03\&times;S}{a}$

Air-gap length: the magnetic pressure of not considering the magnetic circuit upper iron core is fallen, and the maximum of air-gap length is:

$\mathrm{\&delta;}=\frac{\mathrm{IN}}{1.13B_m}$

3, the calculating of ballast self energy consumption

Self energy consumption of ballast comprises iron loss and copper loss two parts, by the energy consumption calculation iron loss of the Unit Weight of silicon steel sheet, by I ²The R formula calculates copper loss.

A, iron loss: core loss mainly is made of eddy current loss and magnetic hysteresis loss, calculates cumbersomely respectively, can be obtained their summation by the specific consumption (W/kg) of silicon steel sheet:

P _Fe＝V ₀×r×G

P _FeBe the total loss power of iron core (W)

V ₀Be core volume (cm ³)

In the formula:

R is the proportion (7.55g/cm of silicon steel sheet ³)

G is the specific consumption (W/kg) of silicon steel sheet

The acquisition of can tabling look-up of silicon steel sheet specific consumption.

B, copper loss: by I ²The R formula calculates.

The invention has the advantages that:

1, energy-saving effect is remarkable, can reach more than 30%.

2, circuit is reliable, does not need repairing substantially, and the life-span is more than 20 years.

3, disposable input cost is very little, needn't carry out a large amount of retrofit works to original circuit.

4, the life-span 2---4 of prolongation lamp, light fixture and attached electrical equipment doubly.

Description of drawings

Fig. 1 is reactor structure of the present invention and wiring schematic diagram;

Fig. 2 is the circuit diagram and the circuit theory diagrams of single lamp power control reactance of the present invention;

Fig. 3 is the circuit diagram and the circuit theory diagrams of many lamps power control reactance of the present invention;

Fig. 4 is a coil thickness schematic diagram of the present invention;

Fig. 5 is the amplitude controlling value reference diagram that power falls in various types of light sources of the present invention.

Embodiment

With embodiment the present invention is described in further details below:

The present invention is achieved in that and utilizes linear reactor, inserts in the circuit for lamp, makes the total impedance of circuit can carry out conversion, thereby the power of lamp is changed thereupon; If changing order is to set according to the needs of lighting environment, under normal circumstances promptly, lamp moves under rated power by designing requirement; In some (late into the night of road lighting for example in particular cases; When the railway station does not have train and passes through; During non-major holiday of lighting engineering or the like), lamp can not extinguish, but needn't illumination very big, and takes into account uniformity again, at this moment can make the lamp downrating; Concrete grammar is that series connection inserts reactor, increases circuit impedance lamp power is descended.

Utilize reactor to realize the illuminating lamp Power Conversion, can be made as two retainings, promptly full power with power falls, gear shift realizes by electromechanical device or electronic circuit.

The manufacture method of reactor is: if the gross power of the lamp during full power is P _{Lamp 1}, the gross power when falling power is P _{Lamp 2}, the making of reactor can be divided into four steps: 1, determine cross section unshakable in one's determination; 2, determine physical dimension; 3, the calculating of ballast self energy consumption; 4, determine cross section unshakable in one's determination.

Concrete steps are as follows:

2, determine cross section unshakable in one's determination:

The gross power of A, the lamp when asking full power is P _{Lamp 1}Gross power when falling power is P _{Lamp 2}Poor: P=P _{Lamp 1}-P _{Lamp 2}

B, selection core section:

$S=K_S\sqrt{P}\left({\mathrm{cm}}^2\right)$

In the formula: S is core section (cm ²);

P is poor (W) of power of lamp tube;

K _SBetween core section coefficient optional 0.5～0.7.Coefficient is obtained greatly, iron

The core temperature rise is lower, but volume is big, material takes.

C, calculating coil turn: according to the quality of silicon steel sheet quality, select the size of magnetic induction density B, black sheet is got 6000G _S, generally get 11000～13000G _S, the desirable 15000～17000G of cold-reduced silicon sheet _S

$N=45\&times;{10}^4\frac{V}{B_m\&times;S},$

In the formula: N is coil turn (circle);

B _mBe silicon steel sheet maximum magnetic induction (G _S);

S is the long-pending (cm of core section ²);

V is reactor voltage effective value (V).

D, the required diameter of wire of calculating are:

$D=1.13\sqrt{\frac{\mathrm{<figure-callout\; id="1"\; label="I\; J"\; filenames="A200410052280.700111.png,A200410052280.700131.png"\; state="\{\{state\}\}">I</figure-callout>}}{J_{}}},$

In the formula: D is diameter of wire (mm)

I is the operating current (A) of fluorescent tube when falling power;

J is the current density (A/mm of lead when falling power ²)

Current density, J is generally got 2.5A/mm ², radiating condition well can be got 3～4A/mm ², the radiating condition difference can get 3～4A/mm ²

2, physical dimension determines

A, calculating coil thickness: selection wire ring framework height H, coil thickness C ' is:

$C^{\&prime;}=\frac{2N{(D+0.03)}^2}{H}$

Window size unshakable in one's determination:

Window width unshakable in one's determination is:

C＝C′+1(mm)

Window height unshakable in one's determination is

$h=\frac{1}{2}H+0.5\left(\mathrm{mm}\right)$

Iron core is repeatedly thick:

$b=\frac{1.03\&times;S}{a}$

Air-gap length: the magnetic pressure of not considering the magnetic circuit upper iron core is fallen, and the maximum of air-gap length is:

$\mathrm{\&delta;}=\frac{\mathrm{IN}}{1.13B_m}$

3, the calculating of ballast self energy consumption

Self energy consumption of ballast comprises iron loss and copper loss two parts, by the energy consumption calculation iron loss of the Unit Weight of silicon steel sheet, by I ²The R formula calculates copper loss.

A, iron loss: core loss mainly is made of eddy current loss and magnetic hysteresis loss,

Calculate cumbersomely respectively, can obtain their summation by the specific consumption (W/kg) of silicon steel sheet:

P _Fe＝V ₀×r×G

P _FeBe the total loss power of iron core (W)

V ₀Be core volume (cm ³)

In the formula:

R is the proportion (7.55g/cm of silicon steel sheet ³)

G is the specific consumption (W/kg) of silicon steel sheet

The acquisition of can tabling look-up of silicon steel sheet specific consumption.

B, copper loss: by I ²The R formula calculates.

Claims (3)

1, a kind of method of utilizing reactor control illuminating lamp Power Conversion is characterized in that it being that series connection inserts reactor in the circuit of existing illuminating lamp, increases circuit impedance lamp power is descended.

2, a kind of method of utilizing reactor control illuminating lamp Power Conversion as claimed in claim 1, it is characterized in that the described reactor that utilizes realizes the illuminating lamp Power Conversion, can be made as two retainings, promptly full power with power falls, gear shift realizes by electromechanical device or electronic circuit.

3, a kind of manufacture craft that can control the reactor of illuminating lamp Power Conversion is characterized in that described concrete technology may further comprise the steps: determine cross section unshakable in one's determination, determine the calculating of physical dimension, ballast self energy consumption, definite cross section unshakable in one's determination.

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